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904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 30" Duct Opening (front blades parallel to shortest dimension)
remove the two center cones as a unit and reposition the six screws
2" ADC compliant round collar with bead for ease of installation
Louvers designed with rolled rib for maximum strength and rigidity
One-piece removable slide damper for off-season closure
Adjustable Diffuser 950-16X8 Accessories 904 - Double Deflection AdjustableStandard Features Adjustable aluminum airfoil blades oriented for 1 or 2 way airflow pattern Blades parallel to shortest dimension One piece stamped steel frame on most common sizes, alternate frame is extruded aluminum with signature line marks. Lever operated steel multi shutter damper Designed for ceiling or sidewall applications Nylon bushings on adj. blades prevent metal on metal rattle Countersunk mounting holes for flush appearance with color
